776801 has 2 divisors, whose sum is σ = 776802. Its totient is φ = 776800.

The previous prime is 776759. The next prime is 776813. The reversal of 776801 is 108677.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 774400 + 2401 = 880^2 + 49^2 .

It is an emirp because it is prime and its reverse (108677) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 776801 - 2¹⁰ = 775777 is a prime.

It is a Chen prime.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 776801.

It is not a weakly prime, because it can be changed into another prime (776851) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 388400 + 388401.

It is an arithmetic number, because the mean of its divisors is an integer number (388401).

2⁷⁷⁶⁸⁰¹ is an apocalyptic number.

It is an amenable number.

776801 is a deficient number, since it is larger than the sum of its proper divisors (1).

776801 is an equidigital number, since it uses as much as digits as its factorization.

776801 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2352, while the sum is 29.

The square root of 776801 is about 881.3631487645. The cubic root of 776801 is about 91.9256251451.

The spelling of 776801 in words is "seven hundred seventy-six thousand, eight hundred one".